x − n u mb er o f m ess a g es y − cos t 4 ce n t s = 0 , 04$ y = 4 + 0 , 04 x Eq u a t i o n i s y = 4 + 0 , 04 x .
The table for Pedro's cell phone plan (Plan A) would indicate the total cost based on the $4.00 base fee and an additional 4 cents for each text message. His total cost increases by 4 cents with each additional message sent beyond the base fee. ;
To summarize, Pedro's total monthly cost for text messaging is calculated using the formula: Total Cost = 4 + 0.04 × n . A table for a range of messages shows that the cost starts at $4.00 and increases by $0.04 for each additional message. For example, sending 10 messages results in a total cost of $4.40.
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